What is the charge of an element has 9 protons 11 neutrons and 8 electrons

Choose all the answers that apply. ionic compounds dissolve easily in water do not dissolve in water have low melting points have high melting points conduct electricity when melted

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.